Constipation: what to do, what to eat and when to worry

Constipation means a change in how you poo: going less often, having to strain, or passing hard stools. It is very common in adults and in most cases it is not a sign of disease. The encouraging part is that there are concrete things you can change this week, and most of them cost nothing and need no supplements.

What usually helps: increasing fibre gradually, drinking more water, walking every day, keeping a regular toilet routine and not putting off the urge. And there are signs — blood in your stool, unexplained weight loss, abdominal pain — that call for a medical appointment, not a change of diet.

What constipation actually is — and is it normal?

The clinical definition is not just about how many times you go to the toilet. The NHS describes constipation as changes in the way you empty your bowels: not going as often, finding it difficult to poo, or both. That means someone who goes every day but strains a lot can be constipated, and someone who goes three times a week without effort may not be.

In most adults the causes are several and sometimes there is no obvious reason at all. The NHS notes exactly that: there are many possible causes and in some cases none can be identified. That is not a polite way of saying there is no answer — it is the clinical reality. What matters is that the absence of a single cause does not stop useful measures from working.

If you are reading this and thinking "but I eat fibre", it is worth checking the actual amount rather than the impression. Plenty of people assume they get enough fibre because they have salad at lunch.

The everyday causes, from the most common to the less obvious

The cause most often named is simple: not eating enough fibre. The NHS explicitly lists a lack of fibre in the diet as a cause of constipation. This is not a theory; it is the starting point most people can change without help.

Fluids come next. Alcohol counts here too: the NHS advises avoiding it while you are constipated.

Movement matters, and it matters more than many people imagine. A daily walk or a gentle run is part of the NHS recommendations. You do not need a gym or an intense training plan. You need to leave the house and walk.

And screens? They are not on the NHS list of causes, and it would be dishonest to present them as one. What is on the list is routine and not ignoring the urge — and a phone is very good at making you ignore both.

Not putting off the urge is another point the NHS highlights.

What you can change this week — in order of what has the most support

Start with fibre, but with one rule: increase it slowly. The NHS suggests a gradual increase. In practice that might mean adding one piece of fruit with the skin on, or a portion of pulses, each day for a week before increasing further.

Which foods specifically? The NHS states that choosing foods with fibre can help digestion and prevent constipation. There is no magic food; there is an eating pattern.

Water goes with fibre. The NHS recommends drinking plenty of water and other fluids and avoiding alcohol. You do not need to count litres to the millilitre. You need to drink across the day, not only at meals.

Daily movement is the third piece. The NHS mentions a daily walk or run as a useful measure. If you already walk, it may be worth adding a few minutes or a little intensity.

A toilet routine is the fourth. The NHS advises keeping a regular time and place to go to the toilet.

Finally, do not delay. If you feel the urge, go. The NHS explicitly includes "not putting off going to the toilet when you feel the urge" in its recommendations.

What tends not to help — and the advice that promises too much

One popular suggestion that overpromises: eating a lot of fibre all at once. It has already been said above, but it bears repeating because it is the most common mistake.

And there is the idea that a yoghurt a day is enough. It is not a plan, and nothing in the guidance supports it as one.

What about waiting it out? If nothing changes and you simply hope it will settle, you lose the weeks in which the simple measures would have told you whether they work.

Where probiotics fit — honestly

A systematic review found benefit from fibre supplementation in mild to moderate chronic constipation, but the authors themselves said that larger and longer trials are needed. Note what that sentence does and does not say: it is about fibre, and it is hedged.

If you want to try a supplement, Probiotic Gummies from TuttiBear are an option: two gummies a day, for adults. They contain a microbial culture complex and a digestive enzyme complex. They are not a treatment for constipation and they do not replace the measures above. Read the label and check the composition. And note: the product contains polyols, and excessive consumption may have a laxative effect — which, in the context of constipation, may sound ironic, but it is a reason not to exceed the dose.

There is no promise here. There is an option some people choose and others do not. If your constipation is recent and mild, start with the lifestyle measures. If it is persistent, speak to a professional before adding supplements.

When this stops being ordinary and becomes a reason to see someone

Most cases of constipation are not serious. But some signs change the picture, and the NHS is clear about them: see a doctor if your constipation is not improving with treatment, or if there is blood in your stool, unexplained weight loss or abdominal pain.

These signs do not necessarily mean something serious, but they do mean a medical assessment is needed. Do not try to sort it out alone with fibre and water when there is blood in your stool or weight loss.

And if you are pregnant, breastfeeding, have a diagnosed condition or take medication, speak to a healthcare professional before starting any supplement. That applies to probiotics and to any other product.

How long before you know whether it is working

Lifestyle changes are not instant. The systematic review on fibre in chronic constipation mentions that longer trials are needed — which suggests the effects, where they exist, are not immediate.

If after two to three weeks of consistent changes there is no improvement, or things are worse, it is reasonable to seek help. Do not wait months. And do not keep increasing fibre indefinitely if it is not working: another element may be missing, such as water or movement, or there may be a cause that warrants assessment.

What to do next: pick one measure — fibre, for example — and commit to it for two weeks. Then assess. Do not change everything at once, because afterwards you will not know what worked. And if you have any of the warning signs, do not wait two weeks: speak to a doctor or pharmacist.